JavaScript Statement & Expression
7 lessonsAbout 42 minutesBeginner
This part of the JavaScript Tutorial runs from JavaScript Statements through to JavaScript Code Blocks. There are 7 lessons here, and working through them takes about 42 minutes at a steady pace.
It follows on from JavaScript Basics, so finish that first if you have not already — the examples below assume you are comfortable with it.
Each lesson below says what it covers before you open it. Read them in order the first time; afterwards this page works as a index you can jump back into when you need to check one thing.
- 1JavaScript StatementsJavaScript statements are instructions that tell the browser what to do.
- 2JavaScript ExpressionsA JavaScript expression is a piece of code that produces a value.
- 3JavaScript KeywordsJavaScript keywords are reserved words that have a special meaning in JavaScript.
- 4JavaScript IdentifiersJavaScript identifiers are names used to identify variables, functions, objects, classes, and other items in code.
- 5JavaScript Case SensitivityJavaScript is a case-sensitive programming language.
- 6JavaScript SemicolonsJavaScript semicolons are used to separate statements.
- 7JavaScript Code BlocksJavaScript code blocks are used to group multiple statements together.